Quick answers
- Is CVE-2026-49355 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-49355 being exploited in the wild.
- How severe is CVE-2026-49355?
- Medium severity, with a CVSS score of 4.3, published 26 June 2026.
- Which products and versions are affected?
- OpenProject GmbH OpenProject < 17.4.0.
- Is there a fix for CVE-2026-49355?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-49355 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-49355?
- Check whether you run OpenProject GmbH OpenProject at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An information disclosure vulnerability exists in OpenProject's API endpoint `GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id`. The root cause is an authorization bypass (CWE-639) where the system fails to properly validate permissions for linked work packages. An authenticated attacker with low privileges can query specific agenda items to retrieve data from work packages belonging to private or inaccessible projects. This results in the exposure of sensitive information (CWE-200) to unauthorized actors. The issue is resolved in version 17.4.0.
Affected products
- opf OpenProject < 17.4.0
Timeline
- 2026-06-08: advisory: GitHub Security Advisory published by vendor
- 2026-06-26: disclosed: NVD publication date